Question

标题是我的问题。我设法设置了静态的颜色并编辑当我将它们都设置为相同颜色时进行控制，但我无法弄清楚设置一种颜色而不影响其他颜色。我在互联网上四处张望，但我发现的所有内容都与如何设置一种颜色无关。静态或编辑控件。这是我目前用来设置所有静态文本字段颜色的代码：

#include <windows.h>

LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);

HWND staticTextField, staticTextFieldTwo;

char szClassName[ ] = "WindowsApp";

int WINAPI WinMain(HINSTANCE hThisInstance,
                   HINSTANCE hPrevInstance,
                   LPSTR lpszArgument,
                   int nFunsterStil)

{
    HWND hwnd;
    MSG messages;
    WNDCLASSEX wincl;

    wincl.hInstance = hThisInstance;
    wincl.lpszClassName = szClassName;
    wincl.lpfnWndProc = WindowProcedure;
    wincl.style = CS_DBLCLKS; 
    wincl.cbSize = sizeof (WNDCLASSEX);

    wincl.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    wincl.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
    wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
    wincl.lpszMenuName = NULL;
    wincl.cbClsExtra = 0;
    wincl.cbWndExtra = 0;
    wincl.hbrBackground = CreateSolidBrush(RGB(0, 255, 255));

    if (!RegisterClassEx (&wincl))
        return 0;

    hwnd = CreateWindowEx (
       0,
       szClassName,
       "Windows app",
       WS_OVERLAPPED | WS_SYSMENU | WS_MINIMIZEBOX | WS_MAXIMIZEBOX,
       CW_USEDEFAULT,
       CW_USEDEFAULT,
       544,
       375,
       HWND_DESKTOP,
       NULL,
       hThisInstance,
       NULL
    );

    ShowWindow (hwnd, nFunsterStil);

    while (GetMessage (&messages, NULL, 0, 0))
    {
        TranslateMessage(&messages);
        DispatchMessage(&messages);
    }

    return messages.wParam;
}


LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam,
LPARAM lParam)
{
    HDC hdcStatic = (HDC)wParam;

switch (message)
{
    case WM_DESTROY:
        PostQuitMessage (0);
        break;
    case WM_CREATE:

         staticTextField = CreateWindow("STATIC", "static 1", WS_VISIBLE 
         | WS_CHILD, 20, 20, 300, 25, hwnd, NULL, NULL, NULL);


         staticTextFieldTwo = CreateWindow("STATIC", "static2", WS_VISIBLE | 
         WS_CHILD | WS_BORDER, 100, 200, 300, 20, hwnd, NULL, NULL, NULL);

         break;
    case WM_CTLCOLORSTATIC:
        SetTextColor(hdcStatic, RGB(255, 0, 0));
        SetBkColor(hdcStatic, RGB(0, 255, 255));
        return (INT_PTR)CreateSolidBrush(RGB(0, 255, 255));
        break;
    default:
        return DefWindowProc(hwnd, message, wParam, lParam);
}

return 0;
}

任何帮助将不胜感激，我花了很长时间试图弄清楚我几乎已经放弃了！ :-) 预先感谢。

Answer 1

响应WM_CTLCOLORSTATIC时，请选中保存控件句柄的lParam。

CreateSolidBrush创建一个GDI对象。应该使用DeleteObject将其删除，否则会导致资源泄漏。您可以将画笔声明为static并在末尾将其删除。示例：

LRESULT CALLBACK WindowProcedure(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    static HBRUSH hbrush = NULL;
    switch(message)
    {
    case WM_DESTROY:
        if (hbrush) DeleteObject(hbrush);
        hbrush = NULL;
        PostQuitMessage(0);
        break;
    case WM_CREATE:
        staticTextField = CreateWindow("STATIC", "static 1", WS_VISIBLE
            | WS_CHILD, 20, 20, 300, 25, hwnd, NULL, NULL, NULL);
        staticTextFieldTwo = CreateWindow("STATIC", "static2", WS_VISIBLE |
            WS_CHILD | WS_BORDER, 100, 200, 300, 20, hwnd, NULL, NULL, NULL);
        break;
    case WM_CTLCOLORSTATIC:
    {
        HDC hdcStatic = (HDC)wParam;
        if(lParam == (LPARAM)staticTextFieldTwo)
        {
            SetTextColor(hdcStatic, RGB(0, 255, 0));
            SetBkColor(hdcStatic, RGB(0, 255, 255));
            if (!hbrush)
                hbrush = CreateSolidBrush(RGB(0, 255, 255));
            return (LRESULT)hbrush;
        }
        break;
    }
    default:
        return DefWindowProc(hwnd, message, wParam, lParam);
    }
    return 0;
}

如何设置单个静态控件c ++的文本和背景颜色？

1 个答案: