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Chapter 4
62
Passthru with Overlays (cont.)
Continued from previous page.
Create a surface for each overlay
with OlFgCreateSurface.
Get a surface DC with
OlFgGetSurfaceDC.
Draw an image on the surface
with standard GDI functions.
Release the surface DC with
OlFgReleaseSurfaceDC.
Scale passthru image with
OlFgSetPassthruScaling.
Go to the next page.
The default is 480 by 640 for 60 Hz, and
576 by 768 for 50 Hz.
Change
contents of a
surface?
Yes
No
Erase the contents of a surface
with OlFgEraseSurface.
Create
another
overlay?
Yes
No
Summary of Contents for DT3153
Page 1: ...DT3153 UM 15478 H User s Manual ...
Page 4: ......
Page 8: ...Contents viii ...
Page 16: ...About this Manual xvi ...
Page 17: ...1 1 Overview Features 2 Supported Software 3 Accessories 4 ...
Page 66: ...Chapter 3 50 ...
Page 90: ...Chapter 4 74 ...
Page 101: ...85 A Specifications ...
Page 104: ...Appendix A 88 ...
Page 105: ...89 B Connector Pin Assignments Video Input Connector J1 90 Video Coaxial Connector J2 92 ...
Page 136: ......
Page 140: ......