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Hi, thanks for your help, I really appreciate it. I think I forgot to mention that I'm a relative novice, and as I'm just using the straight SDK with no MFC, I'm having problems converting your code for use with WM_NOTIFY. Do I create a function similar to your OnDeltaPosSpinRed() function and then somehow call it from WM_NOTIFY?
Sorry if this is a very basic question.
Many thanks,
KB
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My apologies, I just assumed MFC...
In straight Win32, you will need to handle WM_NOTIFY in your MyDlgProc. Then cast lParam to a NMHDR * to get the sub-code.
This is an off the cuff bit of code. Depending on your application, you may want to split this code into sub functions...
INT_PTR CALLBACK MyDlgProc (HWND hDlg, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
switch (iMsg)
{
...
case WM_NOTIFY:
{
NMHDR *nmHdr = (NMHDR *)lParam;
if (!nmHdr) break;
switch (nmHdr->code)
{
...
case UDN_DELTAPOS:
{
NMUPDOWN *ud = (NMUPDOWN *)nmHdr;
e.g. SendDlgItemMessage (hDlg, IDC_OTHERTHING, WM_SOMETHING, ..., ud->iPos);
}
break;
...
}
}
break;
...
}
return 0;
}
This has been a bit of nostalgia for me! I only use SDK only for background apps that are really dinky and lightweight.
Iain.
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Thank you for the help, I really appreciate it - this is really useful. Sorry I didn't reply to thank you earlier, but for some reason I couldn't access the Code Project for the past few days (I'm on a different internet connection now, so maybe it's NTLWorld playing up...).
Anyway, thanks again!
Cheers,
KB
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You're welcome. I couldn't get to CP for a couple of days either.
Glad I could help,
Iain.
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How can I set a toolbar button to display an icon?
Eilzabeth
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Import the Icon u want to set to resource editor of the Workspace.... copy it and paste it on the toolbar button(on which u want to display).....
but framework suports only sizes 16*16 or 32*32
hope this works for u.....
regards
Adi
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I got it. Thank you.
Eilzabeth
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Does anyone know if the Job Object API supports setting up jobs on a remote machine, or if it only works locally? If you have a link that would be great also...TIA
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There appear to be a weird problem here.
I open VS. Build, Run the program. Works fine. Now Build, Run again, and va_arg does not return NULL after the last arg. Now I close VS, open it again. Same process from here.
Anyone had these problems? Or can replicate them? Or fix them? 
leppie::AllocCPArticle(Generic DFA State Machine for .NET);
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There's no end-of-list mark with variable argument lists. You've been lucky so far that, sometimes, the next item on the stack has been zero.
You need to either look for a terminator value, or know how many items are in your list (by, for example, passing that as the first argument).
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hmm, maybe, but then you'll loose some of the type of comfort that (...) provides. Imagine that before every printf() you have to prepare a linked list of arguments :-/.
But on the other side, the ... parameters doesn't have the type control, so it's some sort of evil 
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Any way, that allows you to detect end of the parameter list is acceptable. With the NULL backstop is only one disadvantage which comes to mind when you really need to pass some NULL as a valid value to one of normal parameters.
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I created a Modaless dialog from my application, how can I detect that the dialog has lost focus (ex when the user clicks within the parent window and the dialog box is still there. I need this b/c without it new Modaless dialog boxes can be created with the existing one there.
-Steven Hicks
CPACodeProjectAddict
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One solution is to add a handler for WM_KILLFOCUS.
Kuphryn
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who to flush the receivebuffer of the serial interface (com1)
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How are you currently reading from it?
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#ifndef MESSGERAETE_H
#define MESSGERAETE_H
#include "windows.h"
class Messgeraete{
public:
Messgeraete();
~Messgeraete();
void takeValues();
double getValue(int value);
void stopThread();
//-1: Messung wurde abgerochen, 0 keine gütligen Werte, 1 gültige Werte wurden gelesen
int getMessflag();
static DWORD messenThread(LPVOID);
private:
HANDLE h_com;
HANDLE h_messThread;
DCB dcb;
COMMTIMEOUTS cto;
double value1, value2;
int messflag;
};
#endif
Messgeraete::Messgeraete(){
messflag=0;
h_com = CreateFile("COM1", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0 , NULL);
DCB dcb_neu;
COMMTIMEOUTS cto_neu;
GetCommState(h_com, &dcb);
GetCommState(h_com, &dcb_neu);
dcb_neu.BaudRate = 9600;
dcb_neu.ByteSize = 8;
dcb_neu.Parity = NOPARITY;
dcb_neu.StopBits = ONESTOPBIT;
SetCommState(h_com, &dcb_neu);
GetCommTimeouts(h_com,&cto);
GetCommTimeouts(h_com,&cto_neu);
cto_neu.ReadTotalTimeoutConstant=0;
cto_neu.ReadTotalTimeoutMultiplier=0;
SetCommTimeouts(h_com,&cto_neu);
}
Messgeraete::~Messgeraete(){
SetCommTimeouts(h_com,&cto);
SetCommState(h_com, &dcb);
CloseHandle(h_com);
}
DWORD Messgeraete::messenThread(LPVOID lparam){
Messgeraete *mp = (Messgeraete*)lparam;
int i;
unsigned long nBytesRead1,nBytesRead2;
char inbuffer1[13];
char inbuffer2[13];
char temp[9];
temp[8]=0;
ReadFile(mp->h_com, &inbuffer1, 13, &nBytesRead1, NULL);
ReadFile(mp->h_com, &inbuffer2, 13, &nBytesRead2, NULL);
// CString str;
// str.Format("%s\n%s",inbuffer1,inbuffer2);
// AfxMessageBox(str);
for(i=0;i<8;i++) temp[i]=inbuffer1[i+4];
mp->value1=atof(temp);
for(i=0;i<8;i++) temp[i]=inbuffer2[i+4];
mp->value2=atof(temp);
if(inbuffer1[0]=='9'){mp->value1=-1;AfxMessageBox("Messschieber ist nicht eingeschaltet oder nicht richtig angeschlossen");}
if(inbuffer2[0]=='9'){mp->value2=-1;AfxMessageBox("Messuhr ist nicht eingeschaltet oder nicht richtig angeschlossen");}
mp->messflag=1;
return 0;
}
void Messgeraete::takeValues(){
messflag=0;
h_messThread=CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)messenThread, (LPVOID)this, 0, NULL);
}
double Messgeraete::getValue(int value){
if (value==1) return value1;
else return value2;
}
void Messgeraete::stopThread(){
DWORD dw;
GetExitCodeThread(h_messThread, &dw);
TerminateThread(h_messThread, dw);
value1=value2=-1;
messflag=-1;
}
int Messgeraete::getMessflag(){ return messflag; }
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doesn't work
in msdn is writte:
If hFile is a handle to a communications device, the function only flushes the transmit buffer.
I want to flush the receive buffer
any ideas?
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Hi David,
Solution was this command
Thanks for you help
PurgeComm(h_com,PURGE_RXCLEAR);
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yes, the debugging version is working okay, and the release version crashed.
It's a SDI project. After the release version run for about 5 seconds, this error message pop up:
"First-chance exception in MyApp.exe: 0xC0000005: Access Violation."
The call stack is:
CWnd::AttachControlSite(CWnd * const 0x010b7b2c {CMapPtrToPtr}, CHandleMap * 0x010b7b28) line 420
CWnd::FromHandle(HWND__ * 0x00060aaa) line 293
CWnd::GetOwner(const CWnd * const 0x010b7b2c {CMapPtrToPtr}) line 35 + 22 bytes
AfxGetParentOwner(HWND__ * 0x00050ad2) line 2141 + 7 bytes
CWnd::GetTopLevelParent(const CWnd * const 0x010b7b2c {CMapPtrToPtr}) line 2157 + 6 bytes
CWinThread::PreTranslateMessage(CWinThread * const 0x010b7b2c {CMapPtrToPtr}, tagMSG * 0x004751d0 {msg=0x00000118 wp=0x0000ffff lp=0xa00258ae}) line 680 + 7 bytes
CWinThread::PumpMessage(CWinThread * const 0x010b7b2c {CMapPtrToPtr}) line 848 + 17 bytes
CWinThread::Run(CWinThread * const 0x010b7b2c {CMapPtrToPtr}) line 487 + 7 bytes
CWinApp::Run(CWinApp * const 0x010b7b2c {CMapPtrToPtr}) line 399 + 7 bytes
AfxWinMain(HINSTANCE__ * 0x00400000, HINSTANCE__ * 0x00000000, char * 0x00133476, int 1) line 49 + 7 bytes
WinMain(HINSTANCE__ * 0x00400000, HINSTANCE__ * 0x00000000, char * 0x00133476, int 1) line 30
TCSTATUS! WinMainCRTStartup + 224 bytes
any hint?
Thank you a lot for any help!
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The usuals, check for un-initialized variables, bad conditions in if, bad loops, ...
Give your project a level-4 warning level compile to see if the compiler can find the obvious things.
Maximilien Lincourt
"Never underestimate the bandwidth of a station wagon filled with backup tapes." ("Computer Networks" by Andrew S Tannenbaum )
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See if this helps:
http://flounder.com/debug_release.htm
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