private bool SetCharFormat(int mask, int effect, RichTextBoxSelectionAttribute charFormat)
{
if (!base.IsHandleCreated)
{
return false;
}
System.Windows.Forms.NativeMethods.CHARFORMATA lParam = new System.Windows.Forms.NativeMethods.CHARFORMATA {
dwMask = mask
};
switch (charFormat)
{
case RichTextBoxSelectionAttribute.None:
lParam.dwEffects = 0;
break;
case RichTextBoxSelectionAttribute.All:
lParam.dwEffects = effect;
break;
default:
throw new ArgumentException(System.Windows.Forms.SR.GetString("UnknownAttr"));
}
return (IntPtr.Zero != System.Windows.Forms.UnsafeNativeMethods.SendMessage(new HandleRef(this, base.Handle), 0x444, 1, lParam));
}
/// <include file='doc\RichTextBox.uex' path='docs/doc[@for="RichTextBox.SetCharFormat"]/*' />
/// <devdoc>
/// </devdoc>
/// <internalonly/>
private bool SetCharFormat(int mask, int effect, RichTextBoxSelectionAttribute charFormat) {
// check to see if the control has been created
if (IsHandleCreated) {
NativeMethods.CHARFORMATA cf = new NativeMethods.CHARFORMATA();
cf.dwMask = mask;
switch (charFormat) {
case RichTextBoxSelectionAttribute.All:
cf.dwEffects = effect;
break;
case RichTextBoxSelectionAttribute.None:
cf.dwEffects = 0;
break;
default:
throw new ArgumentException(SR.GetString(SR.UnknownAttr));
}
// set the format information
return IntPtr.Zero != UnsafeNativeMethods.SendMessage(new HandleRef(this, Handle), RichTextBoxConstants.EM_SETCHARFORMAT, RichTextBoxConstants.SCF_SELECTION, cf);
}
return false;
}
