C# Signature:
[DllImport("gdi32.dll")]
static extern uint SetTextColor(IntPtr hdc, int crColor);
VB.NET Signature
<DllImport("gdi32.dll", SetLastError:=True)> _
Public Shared Function SetTextColor(hdc As IntPtr, crColor as Integer) as UInteger
End Function
VB Signature
Public Declare Function SetTextColor Lib "gdi32.dll" _
(ByVal prmlngHDc As Long, _
ByVal prmlngRGB As Long) As Long
User-Defined Types:
None.
Notes:
The below example is need because of an error in the managed version.
Tips & Tricks:
Please add some!
Sample Code:
Example usage; ownerdraw on tabcontrol (tab headers)
[DllImport("user32.dll", CharSet=CharSet.Unicode)]
static extern int DrawText(IntPtr hdc, string lpStr, int nCount,ref Rect lpRect, int wFormat);
[DllImport("gdi32.dll")]
static extern int SetTextColor(IntPtr hdc, int crColor);
[DllImport("gdi32.dll")]
static extern int SetBkColor(IntPtr hdc, int crColor);
private const int DT_CENTER = 0x1;
private const int DT_VCENTER = 0x4;
private const int DT_SINGLELINE = 0x20;
private struct Rect
{
public int Left,Top,Right,Bottom;
public Rect(Rectangle r)
{
this.Left = r.Left;
this.Top = r.Top;
this.Bottom = r.Bottom;
this.Right = r.Right;
}
}
private void tabControl1_DrawItem(object sender, DrawItemEventArgs e)
{
e.DrawBackground();
TabPage tabPage = this.TabPages[e.Index] as TabPage;
using (Brush backcolorBrush = new SolidBrush(Color.Pink))
{
e.Graphics.FillRectangle(backcolorBrush, e.Bounds);
Rect bounds = new Rect(e.Bounds);
IntPtr hdc = e.Graphics.GetHdc();
SetTextColor(hdc, ColorTranslator.ToWin32(Color.SteelBlue));
SetBkColor(hdc, ColorTranslator.ToWin32(Color.LemonChiffon));
int flags = DT_CENTER | DT_VCENTER | DT_SINGLELINE;
DrawText(hdc, tabPage.Text, tabPage.Text.Length, ref bounds, flags);
e.Graphics.ReleaseHdc(hdc);
}
e.DrawFocusRectangle();
}
Alternative Managed API:
Do you know one? Please contribute it!
