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GettextExtentExPoint (coredll)
coredll is for smart devices, not desktop Windows. Therefore, this information only applies to code using the .NET Compact Framework. To see if information for GettextExtentExPoint in other DLLs exists, click on Find References to the right.
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C# Signature:
[DllImport("coredll.dll")]
public static extern bool GetTextExtentExPointW(IntPtr hDc, string lpString, int nLength, int nMaxExtent, int[] lpnFit, int[] alpDx, out Size size);
[DllImport("coredll.dll")]
public static extern bool GetTextExtentExPointW(IntPtr hDc, string lpString, int nLength, int nMaxExtent, int[] lpnFit, int[] alpDx, out Size size);
User-Defined Types:
None.
Alternative Managed API:
Do you know one? Please contribute it!
Notes:
None.
Tips & Tricks:
Set lpnFit to null to ignore nMaxExtent.
Setting lpnFit and alpDx to null will get you the functionality of GetTextExtentPoint.
Setting
Sample Code:
...
using(Graphics g = ctrl.CreateGraphics())
{
IntPtr hDC = g.GetHdc();
string testString = "Hello p/Invoke";
int width = 30;
int[] fi = new int[1];
int[] charExtents = new int[testString.Length];
Size sz;
GetTextExtentExPointW(hDC, testString, testString.Length, width, fit, charExtents, out sz);
...
g.ReleaseHdc(hDC);
}
...
Please add some!
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 GetTextExtentPoint32 API
3/3/2011 4:42:48 AM - -129.188.33.26
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Revisions