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PostMessageA (user32)
.
C# Signature:
[DllImport("User32.Dll", EntryPoint = "PostMessageA")]
public static extern bool PostMessage(IntPtr hWnd, uint msg, int wParam, int lParam);
VB Signature:
Declare Function PostMessageA Lib "user32.dll" (TODO) As TODO
User-Defined Types:
None.
Alternative Managed API:
Do you know one? Please contribute to it!
Notes:
None.
Tips & Tricks:
Please add some!
Sample Code:
public const uint WM_KEYDOWN = 0x100;
// get the handle of window
var hWnd = IntPtr.Zero; //use FindWindowEx etc...
// send few messages to the window
PostMessage(hWnd, WM_KEYDOWN, VkKeyScan('h'), 0);
PostMessage(hWnd, WM_KEYDOWN, VkKeyScan('e'), 0);
PostMessage(hWnd, WM_KEYDOWN, VkKeyScan('l'), 0);
PostMessage(hWnd, WM_KEYDOWN, VkKeyScan('l'), 0);
PostMessage(hWnd, WM_KEYDOWN, VkKeyScan('o'), 0);
An IntPtr is a pointer to a memory location (unmanaged) that adapts to the platform it is running on (64-bit, etc.) UNLIKE a standard int/Integer. You should always use this type for unmanaged calls that require it, even though an int will appear to work on your development machine.
1/13/2008 4:00:13 AM - Damon Carr-72.43.165.29
An IntPtr is a pointer to a memory location (unmanaged) that adapts to the platform it is running on (64-bit, etc.) UNLIKE a standard int/Integer. You should always use this type for unmanaged calls that require it, even though an int will appear to work on your development machine.
1/13/2008 4:00:13 AM - Damon Carr-72.43.165.29
An IntPtr is a pointer to a memory location (unmanaged) that adapts to the platform it is running on (64-bit, etc.) UNLIKE a standard int/Integer. You should always use this type for unmanaged calls that require it, even though an int will appear to work on your development machine.
1/13/2008 4:00:13 AM - Damon Carr-72.43.165.29
The SetLastError API
1/26/2016 3:27:33 AM - -124.148.167.58
Click to read this page
4/6/2008 7:23:14 AM - anonymous
Click to read this page
4/6/2008 7:23:14 AM - anonymous
An IntPtr is a pointer to a memory location (unmanaged) that adapts to the platform it is running on (64-bit, etc.) UNLIKE a standard int/Integer. You should always use this type for unmanaged calls that require it, even though an int will appear to work on your development machine.
1/13/2008 4:00:13 AM - Damon Carr-72.43.165.29
Click to read this page
6/25/2010 2:17:25 PM - -90.152.60.34
Click to read this page
6/25/2010 2:17:25 PM - -90.152.60.34
The SetLastError API
1/26/2016 3:27:33 AM - -124.148.167.58
Click to read this page
4/6/2008 7:23:14 AM - anonymous
Click to read this page
4/6/2008 7:23:14 AM - anonymous
An IntPtr is a pointer to a memory location (unmanaged) that adapts to the platform it is running on (64-bit, etc.) UNLIKE a standard int/Integer. You should always use this type for unmanaged calls that require it, even though an int will appear to work on your development machine.
1/13/2008 4:00:13 AM - Damon Carr-72.43.165.29
An IntPtr is a pointer to a memory location (unmanaged) that adapts to the platform it is running on (64-bit, etc.) UNLIKE a standard int/Integer. You should always use this type for unmanaged calls that require it, even though an int will appear to work on your development machine.
1/13/2008 4:00:13 AM - Damon Carr-72.43.165.29
The SetLastError API
1/26/2016 3:27:33 AM - -124.148.167.58
Click to read this page
4/6/2008 7:23:14 AM - anonymous
Click to read this page
4/6/2008 7:23:14 AM - anonymous
An IntPtr is a pointer to a memory location (unmanaged) that adapts to the platform it is running on (64-bit, etc.) UNLIKE a standard int/Integer. You should always use this type for unmanaged calls that require it, even though an int will appear to work on your development machine.
1/13/2008 4:00:13 AM - Damon Carr-72.43.165.29
An IntPtr is a pointer to a memory location (unmanaged) that adapts to the platform it is running on (64-bit, etc.) UNLIKE a standard int/Integer. You should always use this type for unmanaged calls that require it, even though an int will appear to work on your development machine.
1/13/2008 4:00:13 AM - Damon Carr-72.43.165.29
The SetLastError API
1/26/2016 3:27:33 AM - -124.148.167.58
Click to read this page
4/6/2008 7:23:14 AM - anonymous
Click to read this page
4/6/2008 7:23:14 AM - anonymous
An IntPtr is a pointer to a memory location (unmanaged) that adapts to the platform it is running on (64-bit, etc.) UNLIKE a standard int/Integer. You should always use this type for unmanaged calls that require it, even though an int will appear to work on your development machine.
1/13/2008 4:00:13 AM - Damon Carr-72.43.165.29
The SetLastError API
1/26/2016 3:27:33 AM - -124.148.167.58
Click to read this page
4/6/2008 7:23:14 AM - anonymous
Click to read this page
4/6/2008 7:23:14 AM - anonymous
An IntPtr is a pointer to a memory location (unmanaged) that adapts to the platform it is running on (64-bit, etc.) UNLIKE a standard int/Integer. You should always use this type for unmanaged calls that require it, even though an int will appear to work on your development machine.
1/13/2008 4:00:13 AM - Damon Carr-72.43.165.29
An IntPtr is a pointer to a memory location (unmanaged) that adapts to the platform it is running on (64-bit, etc.) UNLIKE a standard int/Integer. You should always use this type for unmanaged calls that require it, even though an int will appear to work on your development machine.
1/13/2008 4:00:13 AM - Damon Carr-72.43.165.29
Click to read this page
10/2/2011 2:35:57 AM - txzhgh-89.110.151.174
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