Bug Issue with WM_SETICON message

Hello,

I have forwarded your report to the Stardock support team for their review and recommendations.

Please keep an eye on this thread for any updates.

We really do appreciate your feedback, thanks.

I think the problem is not in WindowBlinds. The problem is in your code. Have you tried another way ? Something like this (converted from vb.net):

public void SetWindowIcon(IntPtr hWnd) //<-- this is the WndProc message handle: m.hWnd
{
IntPtr hIcon = new Icon(My.Resources.ANY_ICON, 16, 16).Handle;
if (hIcon != IntPtr.Zero) {
SetClassLongPtr(new HandleRef(null, hWnd), CLSLong.GCL_HICON, hIcon);
SWPF sFlags = SWPF.SWP_NOSIZE | SWPF.SWP_NOMOVE | SWPF.SWP_NOZORDER | SWPF.SWP_NOOWNERZORDER | SWPF.SWP_NOACTIVATE | SWPF.SWP_FRAMECHANGED;
SetWindowPos(hWnd, IntPtr.Zero, 0, 0, 0, 0, sFlags);
}
}

WHERE:

public static IntPtr SetClassLongPtr(HandleRef hWnd, int nIndex, IntPtr dwNewLong)
{
if (IntPtr.Size > 4) {
return (IntPtr)SetClassLong64(hWnd, nIndex, Convert.ToInt32(dwNewLong));
} else {
return new IntPtr(SetClassLong32(HandleRef.op_Explicit(hWnd), nIndex, Convert.ToInt32(dwNewLong)));
}
}

[DllImport("user32.dll", EntryPoint = "SetClassLong")]
public static int SetClassLong64(HandleRef hWnd, int nIndex, int dwNewLong)
{
}

[DllImport("user32.dll", EntryPoint = "SetClassLong")]
public static int SetClassLong32(IntPtr hWnd, int nIndex, int dwNewLong)
{
}

[DllImport("user32.dll", SetLastError = true)]
public static bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int x, int y, int cx, int cy, SWPF uFlags)
{
}

public enum CLSLong : int
{
GCL_HBRBACKGROUND = -10,
GCL_HICON = -14,
GCL_STYLE = -26
}

public enum SWPF : int
{
//[SetWindowPosFlags]
SWP_NOSIZE = 0x1,
SWP_NOMOVE = 0x2,
SWP_NOZORDER = 0x4,
SWP_NOREDRAW = 0x8,
SWP_NOACTIVATE = 0x10,
SWP_FRAMECHANGED = 0x20,
SWP_SHOWWINDOW = 0x40,
SWP_HIDEWINDOW = 0x80,
SWP_NOOWNERZORDER = 0x200,
SWP_DEFERERASE = 0x2000
}