Description: OnDraw function to add the code to achieve the output screen, the process of rewriting useless OnPaint () function, there is a need to achieve output OnDraw function., Including the Form line. Data and header. In print and print preview, the did not use to call OnDraw function, use OnPrint function completed. through the above-mentioned two steps to complete a simple screen and print the same output, WYSIWYG.
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