example of embarcadero WindowHandleToPlatform c++

Question

I need an example of WindowHandleToPlatform for c++ builder I want to use the handle to do bitblt and other functions to a form I can do this using VCL and works great. Think WindowHandleToPlatform is the solution for firemonkey, but documentation is very poor

Thanks

Do you mean the TPlatformServices? and that you want to get to IFMXWindowService? — Huy Pham, Nov 21 '13 at 07:26
No, I want to access The actual windows handle as the firemonkey handle does not support many things — user3016178, Nov 22 '13 at 08:00
Use WindowHandleToPlatform(Form1.Handle) will give you the actual Windows window handle. — Huy Pham, Nov 22 '13 at 08:15
@HuyPham: that would be `Form1->Handle` in C++. And if the calling code is already inside of the `TForm1` class, then drop the `Form1->` portion and access the `Handle` via the implicit `this` pointer (`Self` in Delphi). — Remy Lebeau, Dec 19 '13 at 02:13

score 1 · Answer 1 · answered Dec 19 '13 at 02:25

Try this:

#include <FMX.Platform.Win.hpp>

void __fastcall TMyForm::DoSomething()
{
    TWinWindowHandle *ThisHandle = WindowHandleToPlatform(this->Handle);
    if (ThisHandle != NULL)
    {
        HWND hWnd = ThisHandle->Wnd;
        if (ThisWnd != NULL)
        {
            // use ThisWnd as needed...
        }
    }
}

Or use FormToHWND() instead (which uses WindowHandleToPlatform() internally):

#include <FMX.Platform.Win.hpp>

void __fastcall TMyForm::DoSomething()
{
    HWND ThisWnd = FormToHWND(this);
    if (ThisWnd != NULL)
    {
        // use ThisWnd as needed...
    }
}

Either way, keep in mind that these functions are specific Windows. If you want something that is cross-platform, you will have to find another solution.

example of embarcadero WindowHandleToPlatform c++

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