 |
 |
|---|---|
USB 2.0 GigE |
- |
Syntax
INT is_GetDC (HIDS hCam, HDC* phDC)
Description
|
This function is obsolete and should not be used anymore. We recommend to use the is_DirectRenderer() function instead. |
In DirectDraw BackBuffer mode, is_GetDC() returns the device context handle of the overlay buffer. Using this handle, it is possible to access the overlay using the Windows GDI functionality. Thus, all Windows graphics commands such as Line, Circle, Rectangle, TextOut, … are available. You should release the device context handle as early as possible using the is_ReleaseDC() function. While a GetDC...ReleaseDC block is executed, the overlay buffer on the screen will not be updated.
Input parameters
hCam |
Camera handle |
phDC |
Pointer to the variable that is supposed to contain the device context handle |
Return values
IS_SUCCESS |
Function executed successfully |
IS_NO_SUCCESS |
General error message |
Related functions
•is_SetDisplayMode()
