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Private Shared Function FindResource(hModule As IntPtr, lpName As IntPtr, lpType As IntPtr) As IntPtr
End Function
VB.NET Signatures:
<DllImport("kernel32.dll")> _
Private Shared Function FindResource(hModule As IntPtr, lpName As Integer, lpType As Integer) As IntPtr
End Function
<DllImport("kernel32.dll")> _
Private Shared Function FindResource(hModule As IntPtr, lpName As Integer, lpType As String) As IntPtr
End Function
<DllImport("kernel32.dll")> _
Private Shared Function FindResource(hModule As IntPtr, lpName As String, lpType As Integer) As IntPtr
End Function
<DllImport("kernel32.dll", SetLastError := True)> _
Private Shared Function FindResource(hModule As IntPtr, lpName As String, lpType As String) As IntPtr
End Function
User-Defined Types:
None.
Notes:
The last 4 overrides are probably more useful than the first. They can be used without any casting.
if the function failes, you can call Marshal.GetLastWin32Error() to get the error code, and send it to the Win32Exception constructor to get the message.
Tips & Tricks:
Please add some!
Sample Code:
this code finds a resource in another executable, loads it to memory, and returns a pointer to it.
private IntPtr FindLoadnLock(IntPtr hExe, String fileName, String fileType) {
IntPtr hResource; //handle to resource
IntPtr pResource; //pointer to resource in memory
hResource = FindResource(hExe, fileName, fileType);
if (hResource.ToInt32() == 0) {
throw new Win32Exception(Marshal.GetLastWin32Error());
}
hResource = LoadResource(hExe, hResource);
if (hResource.ToInt32() == 0) {
throw new Win32Exception(Marshal.GetLastWin32Error());
}
pResource = LockResource(hResource);
if (pResource.ToInt32() == 0) {
throw new Win32Exception(Marshal.GetLastWin32Error());
}
return pResource;
}
Alternative Managed API:
Do you know one? Please contribute it!
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
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
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