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  1. koud0002

    Windows API and bitmaps

    Thanks for your help. InvalidateRect(hwnd, NULL, TRUE) works OK in a normal window. In a DialogBox it behaves differently (at least for me in this case). I have to do more reading and experimenting.
  2. koud0002

    Windows API and bitmaps

    OK, I asked too many questions. Could you answer at least one, please. I have it in dialog box in a rectangle. I can zoom in, out using StretchBlt(). However, it only redraws if the dialog box is hidden and then shown again.
  3. koud0002

    Windows API and bitmaps

    It is working once I moved the code into WM_PAINT. How should I handle the WM_ERASEBKGD?
  4. koud0002

    example of calling RDC from C++

    I think the problem is with the following statement: theApp.pApplication.CreateInstance("CrystalRuntime.Application"); I used the debugger to check the value of theApp.pApplication after the above line has been executed. theApp.pApplication is NULL. Therefore, I think CreateInstance...
  5. koud0002

    example of calling RDC from C++

    I have tried the example included in “Getting Started with the Crystal Report Designer Component in Microsoft Visual C++” available on Crystal Decisions web site. However, I get runtime error when executing: theApp.pReport = theApp.pApplication->OpenReport(FileName); It appears that...
  6. koud0002

    example of calling RDC from C++

    I would very much appreciate a working example of calling RDC (Report Designer Component) from Microsoft Visual C++.

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