diff options
Diffstat (limited to 'public/fpdfview.h')
| -rw-r--r-- | public/fpdfview.h | 46 |
1 files changed, 24 insertions, 22 deletions
diff --git a/public/fpdfview.h b/public/fpdfview.h index 62b7b88410..2c93e962f3 100644 --- a/public/fpdfview.h +++ b/public/fpdfview.h @@ -736,7 +736,8 @@ FPDF_EXPORT void FPDF_CALLCONV FPDF_CloseDocument(FPDF_DOCUMENT document); // page_y - A pointer to a double receiving the converted Y // value in page coordinates. // Return value: -// None. +// Returns true if the conversion succeeds, and |page_x| and |page_y| +// successfully receives the converted coordinates. // Comments: // The page coordinate system has its origin at the left-bottom corner // of the page, with the X-axis on the bottom going to the right, and @@ -754,16 +755,16 @@ FPDF_EXPORT void FPDF_CALLCONV FPDF_CloseDocument(FPDF_DOCUMENT document); // You must make sure the start_x, start_y, size_x, size_y // and rotate parameters have exactly same values as you used in // the FPDF_RenderPage() function call. -FPDF_EXPORT void FPDF_CALLCONV FPDF_DeviceToPage(FPDF_PAGE page, - int start_x, - int start_y, - int size_x, - int size_y, - int rotate, - int device_x, - int device_y, - double* page_x, - double* page_y); +FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDF_DeviceToPage(FPDF_PAGE page, + int start_x, + int start_y, + int size_x, + int size_y, + int rotate, + int device_x, + int device_y, + double* page_x, + double* page_y); // Function: FPDF_PageToDevice // Convert the page coordinates of a point to screen coordinates. @@ -787,19 +788,20 @@ FPDF_EXPORT void FPDF_CALLCONV FPDF_DeviceToPage(FPDF_PAGE page, // device_y - A pointer to an integer receiving the result Y // value in device coordinates. // Return value: -// None. +// Returns true if the conversion succeeds, and |device_x| and +// |device_y| successfully receives the converted coordinates. // Comments: // See comments for FPDF_DeviceToPage(). -FPDF_EXPORT void FPDF_CALLCONV FPDF_PageToDevice(FPDF_PAGE page, - int start_x, - int start_y, - int size_x, - int size_y, - int rotate, - double page_x, - double page_y, - int* device_x, - int* device_y); +FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDF_PageToDevice(FPDF_PAGE page, + int start_x, + int start_y, + int size_x, + int size_y, + int rotate, + double page_x, + double page_y, + int* device_x, + int* device_y); // Function: FPDFBitmap_Create // Create a device independent bitmap (FXDIB). |