Set static text color Win32 - c

Question

I am making a dll that controls a dialogue box. I like to get a certain area to have red text. This code does compile, but the effect is not seen. Here is the area where the dialogProc is done:
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 is a separate message from WM_COMMAND. Your desired handling of the message appears to be correct except that the check for the message is inside your check for WM_COMMAND specific items. Try reorganizing your outer switch statement. Perhaps something like the following:
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;
}
Also note that it would be kinda weird to filter WM_COMMAND's wParam argument when wParam is supposed to provide the HDC for WM_CTLCOLORSTATIC.
WM_CTLCOLORSTATIC Notification at MSDN