Bool and bool transformation Note: True is not necessarily 1. Such a bool will cause the checkbox value of the control to return to zero.

When the bool value transmitted from the configuration file, network, or other channels is assigned to bool, it is found that true is not necessarily 1.

This value may be incorrect due to other errors. Although it does not affect the logic, it still indicates that there is a logic error elsewhere.

Make good judgments and do not allow values other than 0 and 1 to enter bool,

Otherwise, the checkbox value of the control is returned to zero.

 

MFCCodeAs follows:

Void afxapi ddx_check (cdataexchange * PDX, int NIDC, Int & Value) <br/>{< br/> ...... <Br/> If (value <0 | value> 2) <br/> {<br/> trace (traceappmsg, 0, "Warning: dialog data checkbox value (% d) out of range. /n ", <br/> value); <br/> value = 0; // default to off <br/>}< br/> ...... <Br/>}