/* 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);

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;
}

Er meckert folgendermaßen:
c:...focus image.cpp(76) : error C3861: 'MoveLens': identifier not found
Dabei mach ich einfach nix anderes als das Programmbeispiel.

*Mod-Edit* die cpp-Tags sind leider nicht kompatibel mit BBCode-Formatierungen

PS: Und "void main()" war noch nie gültiger C++ Code.

abrissbirne schrieb:

/* 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; }

Habs komplett neu formatiert. hoffe man kann es so besser lesen.

Danke, schonmal.
Wichtig wäre beim Formatieren, Einrückungen in "Klammerebenen".
Also z.B. so:

/* 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);

   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;
}

Spontan würde ich sagen:
1.) Ist reines C und sollte deswegen entweder in C++ gewandelt werden oder ins entsprechendem Forum verschoben werden

2.) "void man(void)" gibt's IIRC auch in C nicht.

3.) Die Frage bleibt: Wo ist MoveLens() implementiert ?
Sprich: Welcher Code soll in der mit "<<hier" gekennzeichneten Stelle ausgeführt werden ?
Vermutlich ist das in der Matrox-Lib implementiert ... dann musst Du die dem LInker auch "mitgeben" (wie das geht, findest Du in der Beschreibung Deines Compilers/Linkers...

Gruß,

Simon2.