What do I need to effectively create gdiplus application under Windows.

Question

What do I need to effectively create gdiplus application under Windows (I have pure dev c++ 6.3)? What to install and where? I need to use "gdiplusgraphics.h and gdiplus.h" to fill windows with color and display editable text on them. I found "WM_CTLCOLOREDIT" option but it completly destroys edit options, no visible cursor when move it overwrite items next to the place where letter should be. /now it display in wright way but blinks/

Answer 1

to fill windows with color and display editable text on them. I found "WM_CTLCOLOREDIT" ...

You must return a Brush handle in WM_CTLCOLOREDIT (where you can set SetTextColor & SetBkColor)

or RichEdit control with WS_EX_TRANSPARENT for real transparency :

Answer 2

Answer 3

	while(GetMessage(&msg, NULL, 0, 0) > 0) { 

		TranslateMessage(&msg);

	
		DispatchMessage(&msg); 

if(msg.message==WM_KEYDOWN && msg.wParam==VK_BACK){


RECT a={0,0,300,300};

InvalidateRect(okna_plikowe[0],&a,FALSE);

 }
	}

xD xD xD

Answer 4

Hi, @Wojciech Sobiesiak I noticed you are using dev c++ 6.3. Will the code work fine in VS2022?

Use hide and show to refresh editbox content

    case WM_CREATE:
    {HWND textfield = CreateWindow(L"EDIT", L"Editable Text!", WS_CHILD | WS_VISIBLE | WS_VSCROLL |
        ES_LEFT | ES_MULTILINE | ES_AUTOVSCROLL|WS_BORDER, 500, 100, 300, 300, hWnd, (HMENU)ID, NULL, NULL); }
    break;
    case WM_CTLCOLOREDIT:
        SetBkMode((HDC)wParam, TRANSPARENT);
        return (LRESULT)GetStockObject(NULL_BRUSH);


case WM_COMMAND:
        {
        if (HIWORD(wParam) == EN_CHANGE)
        {
            ShowWindow(HWND(lParam), SW_HIDE);
            ShowWindow(HWND(lParam), SW_SHOW);
            SetFocus(HWND(lParam));
        }

Best regards,

Minxin Yu

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