Picture database display

iverson_1

Recently wrote a program database is access to take pictures from the database and display them. If you debug the culvert breakpoints of the displayed picture data, the pictures can be displayed normally. If there are no breakpoints, the pictures cannot be displayed, and there is no picture. The same

rosickyice

The explanation is a refresh problem. Once refreshed, it will be gone. The position of the displayed picture may be wrong, and it can be placed in OnPaint or OnDraw.