I m getting CrtIsValidHeapPointer debug assertion

hai This started happening when I added a malloc and free. I checked in Debug it is while freeing the memory. I tried the runtime lib settings.It was initally /MDd that time this error _CrtIsValidHeapPointer was coming.Then I tried to changed to /MTd then it in call stack shm_test.exe1_unlock_fhandle( ) was there. chikach

hai I want some small rectangles on one layer. Then a line has to move from one end to another(which will be like drawing line ..erasing that and drawing next line in new position).This line I want in another layer so that the rectangles are not erased. When I tried to do both rectangles and lines together the rectagles are getting erased.So if i have them in separate layers then change inone layer will not affect the other. So is it possible to have line drawing in one layer and rectangles in another ?

which functions can i use to do this?

hey i got it . :) I chaged the last parameter to SWP_NOZORDER|SWP_SHOWWINDOW .then it was working. Thank u :)

hai , I am using this code in InitDialog() int width=GetSystemMetrics(SM_CXSCREEN); int height=GetSystemMetrics(SM_CYSCREEN); SetWindowPos(AfxGetApp()->m_pMainWnd,0,0,width,height,SWP_SHOWWINDOW); It is not working.

thank you :-)

I an handling the CTLCOLOR_EDIT message in the OnCtlColor() to change the background color of Edit Box.But I am having two edit boxes IDC_EDIT1 and IDC_EDIT2.I want edit1 to be blue and edit2 to be red. How I will know the source of the CTLCOLOR_EDIT message?

hi I am trying to use it in InitDialog() but they are showing undeclared identifier m_pMainWnd I saw this variable in the afxwin.h which is included by the StdAfx.h