000
28.11.2007, 13:42 Uhr
~abrissbirne
Gast
|
Hallo,
ich habe gerade versucht ein Programmbeispiel von Matrox (Matrox Imaging Library) nachzuprogrammieren. Bei folgendem Quellcode bekomme ich die angesprochene Fehlermeldung:
| C++: |
/* Regular includes. */
#include <stdio.h>
#include <mil.h>
#include <stdlib.h>
/* Lens characteristics */
#define FOCUS_MAX_NB_POSITIONS 256
#define FOCUS_MIN_POSITION 0
#define FOCUS_MAX_POSITION 255
#define FOCUS_START_POSITION 0
/* Autofocus search properties */
#define FOCUS_MAX_POSITION_VARIATION 32
#define FOCUS_MODE M_SMART_SCAN
#define FOCUS_SENSITIVITY 1
/* Autofocus hook function that is responsible to move the lens */
long MFTYPE MoveLensFunction(long HookType, long position, void MPTYPE *UserDataPtr);
/* Main application function */
/****************************************************************/
void main(void)
{
MIL_ID MilApplication, /* Application identifier. */
MilSystem, /* System identifier. */
MilDisplay, /* Display identifier. */
MilDigitizer, /* Digitizer identifier. */
MilImage; /* Image buffer identifier. */
long FocusPos; /* Best focus position */
/* Allocate defaults */
MappAllocDefault(M_SETUP, &MilApplication, &MilSystem, &MilDisplay, &MilDigitizer, &MilImage);
/* Grab continuously. */
MdigGrabContinuous(MilDigitizer, MilImage);
/* Pause to show the original image. */
printf("An autofocus operation will be performed.\n");
printf("Press <Enter> to continue.\n");
getchar();
printf("Autofocusing...\n");
/* Perform autofocus by calling the MoveLensFunction iteratively */
MdigFocus (MilDigitizer,
MilImage,
M_DEFAULT,
MoveLensFunction,
M_NULL,
FOCUS_MIN_POSITION,
FOCUS_START_POSITION,
FOCUS_MAX_POSITION,
FOCUS_MAX_POSITION_VARIATION,
FOCUS_MODE + FOCUS_SENSITIVITY, &FocusPos);
/* Print the best focus position and number of iterations*/
printf("The best focus position is %d.\n", FocusPos);
32
Camera auto-focus (continued)
printf("Press <Enter> to end.\n");
getchar();
/* Free all allocations */
MappFreeDefault(MilApplication, MilSystem, MilDisplay, MilDigitizer, MilImage);
}
/* Autofocus hook function that is responsible to move the lens */
/****************************************************************/
long MFTYPE MoveLensFunction(long HookType, long position, void MPTYPE *UserDataPtr)
{
/* If focus position must be changed */
if(HookType == M_CHANGE)
{
/* Move the camera lens to the specified
position using the appropriate interface (e.g. serial port).
*/
MoveLens(position);//<< hier
}
return 0;
}
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Er meckert folgendermaßen:
c:...focus image.cpp(71) : error C3861: 'MoveLens': identifier not found
Dabei mach ich einfach nix anderes als das Programmbeispiel. |
