设置静态文本颜色Win32

我正在制作一个控制对话框的dll。 我喜欢让某个区域有红色文字。 这段代码确实编译，但没有看到效果。 这是dialogProc完成的区域：

LRESULT CALLBACK DialogProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam) { switch(message) { case WM_INITDIALOG: CheckDlgButton(hDlg, IDC_CHECK, FALSE); EnableWindow(GetDlgItem(hDlg, IDOK), FALSE); return TRUE; case WM_COMMAND: switch (LOWORD(wParam)) { case IDC_CHECK: if (IsDlgButtonChecked(hDlg, IDC_CHECK)) { EnableWindow(GetDlgItem(hDlg, IDOK), TRUE); EnableWindow(GetDlgItem(hDlg, IDCANCEL), FALSE); } else { EnableWindow(GetDlgItem(hDlg, IDOK), FALSE); EnableWindow(GetDlgItem(hDlg, IDCANCEL), TRUE); } break; case IDOK: { EndDialog(hDlg, TRUE); return FALSE; } case IDCANCEL: { EndDialog(hDlg, FALSE); return FALSE; } case WM_CTLCOLORSTATIC: // Set the colour of the text for our URL if ((HWND)lParam == GetDlgItem(hDlg,IDC_WARNING)) { // we're about to draw the static // set the text colour in (HDC)lParam SetBkMode((HDC)wParam,TRANSPARENT); SetTextColor((HDC)wParam, RGB(255,0,0)); return (BOOL)CreateSolidBrush (GetSysColor(COLOR_MENU)); } return TRUE; } } return FALSE; } 

Answer 1

WM_CTLCOLORSTATIC是来自WM_COMMAND的单独消息。 您对邮件的理想处理似乎是正确的，除了检查邮件是在WM_COMMAND特定项目的检查范围内。 尝试重新组织外部switch语句。 也许类似如下：

 LRESULT CALLBACK DialogProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam) { switch(message) { case WM_INITDIALOG: // ... break; case WM_COMMAND: switch (LOWORD(wParam)) { case IDC_CHECK: // ... break; case IDOK: // ... break; case IDCANCEL: // ... break; } break; case WM_CTLCOLORSTATIC: // Set the colour of the text for our URL if ((HWND)lParam == GetDlgItem(hDlg, IDC_WARNING)) { // we're about to draw the static // set the text colour in (HDC)lParam SetBkMode((HDC)wParam,TRANSPARENT); SetTextColor((HDC)wParam, RGB(255,0,0)); // NOTE: per documentation as pointed out by selbie, GetSolidBrush would leak a GDI handle. return (BOOL)GetSysColorBrush(COLOR_MENU); } break; } return FALSE; } 

还要注意，当wParam应该为WM_CTLCOLORSTATIC提供HDC时，过滤WM_COMMAND的wParam参数会有点奇怪。

MSDN上的WM_CTLCOLORSTATIC通知