C / C++ / MFC

Parthi_Appu11-Jul-06 0:49

Re: set wallpaper [modified]

11-Jul-06 0:49

You can do it by handling WM_CTLCOLOR

Follow the below steps,

CBitmap m_hBitmap; //Declare in class
m_hBitmap.LoadBitmap(filename); // Add this in Constructor
m_hBitmap.DeleteObject(); // Add this in Destructor

Use the following code in WM_CTLCOLOR handler, before the return statement

if (CTLCOLOR_DLG == nCtlColor) //nCtlColor is the 'in' parameter
{
hbr = ::CreatePatternBrush((HBITMAP)m_hBitmap.m_hObject);
}

ashish dogra11-Jul-06 1:19

ashish dogra

11-Jul-06 1:19

thanks but it does not work
but i use this code and no wallpaper is appeared
CBitmap m_hBitmap; //Declare in class
m_hBitmap.LoadBitmap("D:\\pics\\image001.jpg);
if (CTLCOLOR_DLG == nCtlColor) //nCtlColor is the 'in' parameter
{
hbr = ::CreatePatternBrush((HBITMAP)m_hBitmap.m_hObject);
}

Ashish Dogra
MCA
Noida

-- modified at 7:48 Tuesday 11th July, 2006

Parthi_Appu11-Jul-06 2:02

11-Jul-06 2:02

that will work if you have the bitmap in the resource.
if you are using the bitmap from file, then use the following code,

HBITMAP hBitmap; //Declare in Class

hBitmap = (HBITMAP)::LoadImage(NULL, "C:\\filename.bmp", IMAGE_BITMAP, 0,0,LR_LOADFROMFILE); //in Constructor

::DeleteObject(hBitmap); //in destructor

//Add in WM_CTLCOLOR handler
if (CTLCOLOR_DLG == nCtlColor)
hbr = ::CreatePatterhBrush(hBitmap);

ashish dogra11-Jul-06 2:24

ashish dogra

11-Jul-06 2:24

thanks
but these are errors
'CreatePatterhBrush' : is not a member of '`global namespace''
'CreatePatterhBrush' : undeclared identifier
'=' : cannot convert from 'int' to 'struct HBRUSH__ *'
Conversion from integral type to pointer type requires reinterpret_cast, C-style cast or function-style cast
Error executing cl.exe.
in the
hbr = ::CreatePatterhBrush(hBitmap);

Ashish Dogra
MCA
Noida

David Crow11-Jul-06 5:14

David Crow

11-Jul-06 5:14

ashish dogra wrote:
'CreatePatterhBrush' : is not a member of '`global namespace''
'CreatePatterhBrush' : undeclared identifier

It helps to spell the function correctly. Roll eyes | :rolleyes:

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

Parthi_Appu11-Jul-06 17:58

11-Jul-06 17:58

thats
::CreatePatternBrush(..)

Displaying problem in Bitmaps

Hamid_RT11-Jul-06 19:44

Hamid_RT

11-Jul-06 19:44

if you want to use brush in ctlcolor use

<br />
CBrush *m_brush;<br />
CBitmap m_Bitmap;<br />
m_Bitmap.Attach(LoadImage(...));<br />
m_brush=new CBitmap(&m_Bitmap);<br />

now in ctlcolor return m_brush->GetSafeHandle();//i think this (GetSafeHandle) i dont have vc now
in the end delete m_brush

whitesky

rkshdixit10-Jul-06 23:25

rkshdixit

10-Jul-06 23:25

i want to display different bitmaps of digital no. in subclass static control.i have created an array of handle of HBITMAP and i am getting all the handle in constructor. when i am trying to access from a click of button in dialog its not displaying the digit.
code is below:
// this the derived class constructor
CNewstatic::CNewstatic()
{
for(int i=0;i<=11;i++)// code for getting the handle
{
HBITMAP temp = (HBITMAP)::CreateMappedBitmap(AfxGetApp()->m_hInstance, IDB_BITMAP1+i, 0, NULL, 0);
m_hBitmap[i] = (HBITMAP)::CopyImage( temp, IMAGE_BITMAP, 0, 0, LR_COPYRETURNORG | LR_COPYDELETEORG);
}

}

after a button click i am accessing the objects in a method//

void CNewstatic ::OutPut(int digit,int pos)
{
CRect rect;
GetClientRect(&rect);
m_w = rect.Width()/8;
m_h = rect.Height();
pos =0;
//CBitmap* pBitmap ;//CBitmap::FromHandle( m_hBitmap[digit]);
CClientDC dc(this);
CDC dcMem;
dcMem.CreateCompatibleDC(&dc);

//pBitmap->LoadBitmap(IDB_BITMAP1);
CBitmap* pBitmap = CBitmap::FromHandle( m_hBitmap[0]);
CBitmap* pOldBitmap = dcMem.SelectObject(pBitmap);

dcMem.SelectObject(pOldBitmap);

int f = dc.StretchBlt(m_w*pos, 0, m_w, m_h,
&dcMem, 0, 0, m_bm.bmWidth, m_bm.bmHeight, SRCCOPY);
if(f)
AfxMessageBox("Create");
else
AfxMessageBox("Not Create");
dcMem.DeleteDC();

}
it gives create message after clicking the button but image is not displayed .
please tell me the reason and solution of the problem.

Re: Displaying problem in Bitmaps

Justin Tay10-Jul-06 23:45

Justin Tay

10-Jul-06 23:45

rkshdixit wrote:
dcMem.SelectObject(pOldBitmap);

My guess is that you're selecting out your bitmap too early...

Re: Displaying problem in Bitmaps

rkshdixit11-Jul-06 1:05

rkshdixit

11-Jul-06 1:05

actually i am displaying the bitmap after the calculation it will change display bitmap after 1 sec is it early.

Re: Displaying problem in Bitmaps

Justin Tay11-Jul-06 6:58

Justin Tay

11-Jul-06 6:58

I don't think you understood me. You are selecting your bitmap out before you do the stretchblt. You should select out your bitmap after the stretchblt. I'm actually not sure why you are using CClientDC though. Are you drawing in response to WM_PAINT? Because then you would have a CPaintDC and you should be doing the drawing with it.

Load String From Resource (String Table)

mehmetned10-Jul-06 23:19

10-Jul-06 23:19

I use windows forms in my project. This project must have multilanguage support. How can I load string from resource (String table) without using MFC. But If mfc is adaptable into windows forms, may be it is used. I don't know this.

Parthi_Appu10-Jul-06 23:30

10-Jul-06 23:30

You can use LoadString(..) or LoadResource(..)
Both are Platform SDK functions and not MFC related

mehmetned10-Jul-06 23:36

10-Jul-06 23:36

Thanks for your fast replying. How can I use this methods or functions? (LoadStrıng or LoadResource)

toxcct10-Jul-06 23:39

toxcct

10-Jul-06 23:39

like that :

CString strMainTitle;
strMainTitle.LoadString(IDS_MAINTITLE);
this->SetWindowText(strMainTitle);

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

mehmetned11-Jul-06 0:33

11-Jul-06 0:33

CString is in MFC library. But I must load string without using MFC library.

toxcct11-Jul-06 2:23

toxcct

11-Jul-06 2:23

oh sorry, i didn't check you didn't want MFC...

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Parthi_Appu10-Jul-06 23:50

10-Jul-06 23:50

i'm providing the signature of those functions,

int LoadString(HINSTANCE hInstance, UINT uid, LPTSTR pBuffer, int nBufferLength);

HGLOBAL LoadResource(HMODULE hModule, HRSRC hResourceInfo);
HRSRC FindResource(HMODULE hModule, LPCTSTR lpName, LPCTSTR lpType);

Refer the following link for more info and to know how to use them,

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui/windowsuserinterface/resources/strings/stringreference/stringfunctions/loadstring.asp[^]

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui/windowsuserinterface/resources/introductiontoresources/resourcereference/resourcefunctions/loadresource.asp[^]

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui/windowsuserinterface/resources/introductiontoresources/resourcereference/resourcefunctions/findresource.asp[^]

mehmetned11-Jul-06 0:28

11-Jul-06 0:28

int LoadString( HINSTANCE hInstance,
UINT uID,
LPTSTR lpBuffer,
int nBufferMax
);

Unfortunately, I couldn't understand first parameter of this function. Can you explain this parameter?

mehmetned11-Jul-06 0:30

11-Jul-06 0:30

int LoadString( HINSTANCE hInstance,
UINT uID,
LPTSTR lpBuffer,
int nBufferMax
);
Unfortunately, I couldn't understand first parameter of this function. Can you explain?

Parthi_Appu11-Jul-06 0:37

11-Jul-06 0:37

If the StringTable is in the same application then you can pass NULL as first parameter

mehmetned11-Jul-06 0:53

11-Jul-06 0:53

"error C3861: 'LoadString': identifier not found, even with argument-dependent lookup"

Can you tell me that what is the reason of this error? All the parameter of this functon are correct as given below.

TCHAR sz[160];
LoadString(NULL,IDYES,sz,sizeof(sz));

Parthi_Appu11-Jul-06 0:59

11-Jul-06 0:59

check by incuding "windows.h"