MFC OnKeyDown's UINT nChar vs KeyEventArgs in c#

Is there any way to get the equivaleny UINT nChar (used by CWnd's OnKeyDown method in MFC) from a KeyEventArgs instance in c#

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MFC OnKeyDown's UINT nChar vs KeyEventArgs in c#

dustin1

I don't know what kind of output you expect, but i have made a little example. The ToUnicode method, is that a custom method

private void control_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
{
switch(e.KeyCode)
{
case Keys.NumPad0:
case Keys.NumPad1:
case Keys.NumPad2:
case Keys.NumPad3:
case Keys.NumPad4:
case Keys.NumPad5:
case Keys.NumPad6:
case Keys.NumPad7:
case Keys.NumPad8:
case Keys.NumPad9:
{
char append = (char)(e.KeyCode - Keys.NumPad0);
ascii_key = string.Format( "0{0}", append );
}
}
}

Jenssa
I have this method in a C++ method:

void KeyboardHandlers::OnKeyDown(HBaseViewClr^ hView, UINT nChar, bool bAlt)
{
switch (nChar) {
case VK_NUMPAD0:
case VK_NUMPAD1:
case VK_NUMPAD2:
case VK_NUMPAD3:
case VK_NUMPAD4:
case VK_NUMPAD5:
case VK_NUMPAD6:
case VK_NUMPAD7:
case VK_NUMPAD8:
case VK_NUMPAD9:
{
ascii_key = '0' + nChar - VK_NUMPAD0;
} break;

default: {
ToUnicode(nChar, MapVirtualKey(nChar, 0), keys, (LPWSTR)&ascii_key, 1,0);
}
}
The KeyDown event is raised by a C# Windows Forms App.
Mats Upptrom
You can use the KeyCode and cast that to a Char or you can use the KeyValue property. What is the problem your are trying to solve
MFC OnKeyDown's UINT nChar vs KeyEventArgs in c#

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