Available in LEADTOOLS Imaging Pro, Vector, Document, and Medical Imaging toolkits. |
LDialogFile::DialogOpenCallBack
#include "ltwrappr.h"
virtual L_INT LDialogFile::DialogOpenCallBack(lpFileData, nTotalPercent, nFilePercent)
LPOPENDLGFILEDATA lpFileData; |
/* pointer to a structure */ |
L_INT nTotalPercent; |
/* total completion percentage */ |
L_INT nFilePercent; |
/* completion percentage for a single file */ |
Lets you update a status bar or interrupt during the LDialogFile::DoModalOpen function operation.
Parameter |
Description |
lpFileData |
Pointer to an OPENDLGFILEDATA structure that contains loading data for the file currently being loaded. The data in this structure is read only information. |
nTotalPercent |
An integer that indicates the completion percentage for loading all selected files in the Open dialog. This value will be updated every time a file finishes loading. Valid values range from 0 to 100. |
nFilePercent |
An integer that indicates the completion percentage for loading a single file from the selected files. Valid values range from 0 to 100. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
Override this function if you wish to provide a Status bar or interrupt during the LDialogFile::DoModalOpen function operation.
This function will be called only if the callback functions are enabled; to enable callback functions for the LBase object Call LBase::EnableCallBack(TRUE).
Required DLLs and Libraries
LTDLGFILE For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application |
See Also
Functions: |
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Topics: |
Example
For an example, refer to LDialogFile::DoModalOpen.