C / C++ / MFC

Re: Using multiple Dialogs withing a Dialog application

3-Mar-08 9:33

Is your dialogproc implemented properly?

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

jonsey298473-Mar-08 11:28

Re: Using multiple Dialogs withing a Dialog application

3-Mar-08 11:28

Thanks for fast reply

DialogProc below;

static BOOL CALLBACK PrintDialog( HWND hDlg , UINT message , WPARAM wParam , LPARAM lParam)<br />
{<br />
	switch(message)<br />
	{<br />
		case WM_INITDIALOG:<br />
			return TRUE;<br />
		case WM_COMMAND:<br />
			switch (LOWORD (wParam))<br />
			{<br />
				case IDOK:<br />
				case IDCANCEL:<br />
					EndDialog(hDlg, 0);<br />
					return TRUE;<br />
			}<br />
	}<br />
}<br />

The call is;

case BTN_PRINT:<br />
	      CreateDialog(hInst, MAKEINTRESOURCE(IDD_PRINT), NULL, (DLGPROC) PrintDialog);<br />
<br />

I am not sure about registration of a new class for the PrintDialog, so I made no provsions for same.

Mark Salsbery3-Mar-08 11:38

Re: Using multiple Dialogs withing a Dialog application

3-Mar-08 11:38

Does this work....

static <font color="Red">INT_PTR</font> CALLBACK PrintDialog( HWND hDlg , UINT message , WPARAM wParam , LPARAM lParam)
{
    switch(message)
    {
    case WM_INITDIALOG:
        return TRUE;
    case WM_COMMAND:
        switch (LOWORD (wParam))
        {
            case IDOK:
            case IDCANCEL:
                EndDialog(hDlg, 0);
                return TRUE;
        }
    }

    <font color="Red">return FALSE;</font>
}

...??

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

jonsey298473-Mar-08 11:56

Re: Using multiple Dialogs withing a Dialog application

3-Mar-08 11:56

No I get the same result.

Mark Salsbery3-Mar-08 12:05

Re: Using multiple Dialogs withing a Dialog application

3-Mar-08 12:05

hmm can you post your dialog resource? It's easier for me to just try it Smile | :)

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

jonsey298473-Mar-08 13:32

Re: Using multiple Dialogs withing a Dialog application

3-Mar-08 13:32

/* Wedit generated resource file */<br />
#ifdef __LCC__<br />
#include <windows.h><br />
#endif<br />
#include "obdiiv3res.h"<br />
<br />
<br />
IDD_MAINDIALOG DIALOG 99, 8, 517, 292<br />
STYLE DS_MODALFRAME | WS_POPUP | WS_VISIBLE | WS_CAPTION | WS_SYSMENU<br />
CAPTION "OBDII v3.0a"<br />
FONT 10, "MS Sans Serif"<br />
BEGIN<br />
    PUSHBUTTON      "Print PID data", BTN_PRINT, 188, 255, 60, 20<br />
    CTEXT           "", MSG_BAUDRATE, 326, 255, 37, 12, SS_SUNKEN<br />
    LTEXT           "Baud rate", -1, 407, 195, 70, 9<br />
    COMBOBOX        CB_BAUDRATE, 407, 205, 69, 35, CBS_DROPDOWN | CBS_SORT | WS_VSCROLL | WS_TABSTOP<br />
    CONTROL         "", -1, "STATIC", SS_BLACKFRAME, 319, 144, 166, 33<br />
    CONTROL         "", -1, "STATIC", SS_BLACKFRAME, 17, 255, 158, 27<br />
    PUSHBUTTON      "Get DTC", BTN_GETCODE, 373, 20, 60, 20, WS_DISABLED<br />
    LTEXT           "Startup, PID messages and trouble code help will appear here", MSG_PIDSELECTION, 20, 260, 151, 17, NOT WS_GROUP<br />
    CONTROL         "", LV_PIDDATA, "syslistview32", 0x241 | WS_DISABLED | WS_BORDER, 17, 100, 277, 143<br />
    LISTBOX         LB_PIDSELECTION, 17, 20, 276, 71, WS_DISABLED | WS_VSCROLL | WS_TABSTOP<br />
    LTEXT           "Communication messages will be posted here.", MSG_COMMUNICATION, 324, 148, 155, 23, NOT WS_GROUP<br />
    LTEXT           "Send data", LBL_SENDDATA, 318, 65, 75, 9<br />
    COMBOBOX        CB_COMPORT, 326, 205, 71, 35, CBS_DROPDOWNLIST | CBS_SORT | WS_VSCROLL | WS_TABSTOP<br />
    CTEXT           "", IND_ONLINE, 410, 255, 65, 12, SS_SUNKEN<br />
    DEFPUSHBUTTON   "Go online...", BTN_GOONLINE, 326, 230, 71, 14<br />
    GROUPBOX        "COM Settings", CRP_COMSETTINGS, 318, 181, 169, 91<br />
    COMBOBOX        CB_DEVICE, 318, 123, 70, 35, CBS_DROPDOWN | CBS_SORT | WS_DISABLED | WS_VSCROLL | WS_TABSTOP<br />
    PUSHBUTTON      "Send data", BTN_SENDDATA, 422, 123, 63, 14, WS_DISABLED<br />
    EDITTEXT        EB_RECEIVEDDATA, 318, 100, 169, 12, ES_AUTOHSCROLL | ES_READONLY<br />
    EDITTEXT        EB_SENDDATA, 318, 75, 170, 12, ES_AUTOHSCROLL | WS_DISABLED<br />
    GROUPBOX        "Communication", GRP_COMMUNICATION, 308, 50, 190, 235<br />
    PUSHBUTTON      "Get PID Data", BTN_GETPIDDATA, 308, 20, 60, 20, WS_DISABLED<br />
    PUSHBUTTON      "Cancel", IDCANCEL, 438, 20, 60, 20<br />
    LTEXT           "Received data", TL_RECEIVEDDATA, 318, 90, 75, 9<br />
    LTEXT           "Device selection", TL_DEVICE, 318, 114, 75, 9<br />
    LTEXT           "COM Port", TL_COMPORT, 326, 195, 70, 9<br />
    LTEXT           "PID Selection", TL_PIDSELECTION, 18, 10, 75, 9<br />
    LTEXT           "PID data", TL_PIDDATA, 17, 90, 75, 9<br />
    CTEXT           "", MSG_PARITY, 365, 255, 12, 12, SS_SUNKEN<br />
    CTEXT           "", MSG_STOPBITS, 393, 255, 15, 12, SS_SUNKEN<br />
    CTEXT           "", MSG_BYTESIZE, 379, 255, 12, 12, SS_SUNKEN<br />
END<br />
<br />
IDD_PRINT DIALOG 113, 7, 490, 292<br />
STYLE DS_MODALFRAME | WS_POPUP | WS_VISIBLE | WS_CAPTION | WS_SYSMENU <br />
CAPTION "Print Report"<br />
FONT 10, "MS Sans Serif"<br />
BEGIN<br />
    PUSHBUTTON      "Cancel", IDCANCEL, 12, 243, 40, 14<br />
    CONTROL         "", REPORT, "STATIC", SS_WHITERECT, 12, 12, 465, 226<br />
END<br />
OBDII_ICON ICON "c:\\lcc-win32\\projects\\obdiiv3\\obdii.ico"<br />

Mark Salsbery3-Mar-08 14:02

Re: Using multiple Dialogs withing a Dialog application

3-Mar-08 14:02

Your IDD_PRINT dialog works for me.....here's my code, with changes marked in red:

<font color="Red">INT_PTR</font> CALLBACK PrintDialog( HWND hDlg , UINT message , WPARAM wParam , LPARAM lParam)
{
    switch(message)
    {
    case WM_INITDIALOG:
        return TRUE;
    case WM_COMMAND:
        switch (LOWORD (wParam))
        {
            case IDOK:
            case IDCANCEL:
                <font color="Red">DestroyWindow(hDlg);</font>
                return TRUE;
        }
    }

    <font color="Red">return FALSE;</font>
}


...

    ::CreateDialog(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDD_PRINT), NULL, PrintDialog);

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

jonsey298473-Mar-08 15:00

Re: Using multiple Dialogs withing a Dialog application

3-Mar-08 15:00

Thanks very much, I got it work too, I couldn't use AfxGetInstanceHandle() as I am not using MFC, maybe when I grow up I will.

So it seems to me that removing the static declaration and using the DestroyWindow function made it happen. Can you explain why?

Mark Salsbery3-Mar-08 20:53

Adding items to the 'right-click'(title-bar) context menu of any application

3-Mar-08 20:53

jonsey29847 wrote:
I couldn't use AfxGetInstanceHandle() as I am not using MFC

i figured you weren't using MFC - I just wanted to post the code verbatim.

jonsey29847 wrote:
So it seems to me that removing the static declaration and using the DestroyWindow function made it happen. Can you explain why?

Beats me! A function outside a class is already static so I knew that keyword wasn't necessary,
and DestroyWindow() is the correct function to destroy a modeless dialog (EndDialog() is for modal dialogs).
I also removed the DLGPROC cast - it shouldn't be needed, and if it was needed, that would indicate
something wrong with the function prototype.

I'm not sure why the dialog didn't draw correctly before though Smile | :)

Cheers,
Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

neil47813-Mar-08 8:50

neil4781

3-Mar-08 8:50

Hello All,

I am wondering if there is a way to add an item to menu that is displayed by right-clicking on application's title bar. e.g. if you right-click on IE's title bar, you'll see 'restore-minimize-maximize-close' etc.... can we add an item to such context-menu for any application?

Thanks for your help...

Re: Adding items to the 'right-click'(title-bar) context menu of any application

Mark Salsbery3-Mar-08 10:06

About how many weeks are needed for a Simplified Version of Skype?

3-Mar-08 10:06

You can use GetSystemMenu() to get the menu and edit it.

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

eroy4u3-Mar-08 7:18

eroy4u

3-Mar-08 7:18

I would like a company to do make a simplified version of Skype for me which includes functions as:
1. contact list
2. PC-to-PC phone with webcam showing(which is able to go through most of the firewalls)

As my team have no experience of making such a large application before, can anyone experienced give me an estimation of roughly how long is needed?

for my team consisting of two programmer who is having about 2 years experience on VC++ and socket programming.

Thanks very mcuh.

Re: About how many weeks are needed for a Simplified Version of Skype?

led mike3-Mar-08 7:53

led mike

3-Mar-08 7:53

7 is a divine number

led mike

Re: About how many weeks are needed for a Simplified Version of Skype?

Mark Salsbery3-Mar-08 9:29

Re: About how many weeks are needed for a Simplified Version of Skype?

3-Mar-08 9:29

Brilliant system analysis and design by proxy Roll eyes | :rolleyes:

42 is far more significant.

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

David Crow3-Mar-08 10:23

David Crow

3-Mar-08 10:23

Take the blue pill and proceed to the nearest exit.

"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Call CMainFrame methold from dialog

ptr_Electron3-Mar-08 4:39

3-Mar-08 4:39

How to Call CMainFrame method from dialog

thax

Randor 3-Mar-08 4:46

Randor

3-Mar-08 4:46

<br />
CMainFrame* pFrame = (CMainFrame*)AfxGetMainWnd();<br />
pFrame->MyFunction();<br />

ptr_Electron3-Mar-08 22:12

3-Mar-08 22:12

It worked ..

Thanks

ptr_Electron3-Mar-08 22:52

3-Mar-08 22:52

The reason why I asked this is , I had a very length process(unestimated time) on my dialog box and I need
to display progress bar on the MainFrame. wht I did is start a thread on the first line of the button press event
and from the thread I will calling the Function in the MAinFrame. I am able to acces the funcion, but it did not work.

May I know, if you have any smart idea to do this,

Randor 4-Mar-08 3:59

Randor

4-Mar-08 3:59

It would be better programming practice to use ::PostMessage() to post a WM_USER+ message back to the CMainFrame. You could define a user message such as:

#define WM_INC_PROGRESS WM_USER + 0x10

and then do something like:

int iProgressVal = 50;
CMainFrame* pFrame = (CMainFrame*)AfxGetMainWnd();
if(NULL != pFrame && ::IsWindow(pFrame->GetSafeHwnd()))
{
    ::PostMessage(pFrame->GetSafeHwnd(),WM_INC_PROGRESS,(WPARAM)iProgressVal,0);
}

And in the CMainFrame class you would need to add a handler for this custom message which changed the progress bar to the specified amount. Your code will work just fine like it is. The window message system is a valuable tool and can be used for basic cross-thread communication.

Best Wishes,
-Randor (David Delaune)

ptr_Electron4-Mar-08 5:16

4-Mar-08 5:16

Thanks it worked, but the progress bar is displaing the progress after the completion of the lenghty process. I am looking around to move the progress bar to fro while the process is going on, so that the user will be able to understand that something in progress

I placed the below code in the thread and added a custom msg handler,

int iProgressVal = 50;
CMainFrame* pFrame = (CMainFrame*)AfxGetMainWnd();
if(NULL != pFrame && ::IsWindow(pFrame->GetSafeHwnd()))
{
::PostMessage(pFrame->GetSafeHwnd(),WM_INC_PROGRESS,(WPARAM)iProgressVal,0);
}

I dint not understand where I had gone wrong.

pls Advice.

Cursor Pointers

duta3-Mar-08 4:24

duta

3-Mar-08 4:24

Hi there

In Control Panel->Mouse->Pointers any user can change the mouse cursor pointer. How can I know when the cursor pointer is in normal, text, help, busy, resize..etc state?

I'm working in MFC.

Re: Cursor Pointers

Mark Salsbery3-Mar-08 6:11