Importing image from VBA and display it in a matlab meshgrid.

Hello,

I use COM component to execute a m file from VBA which display a meshgrid in a matlab figure. But while this figure is open, I cannot acces to my VBA program to load an other image. My goal is the meshgrid refresh as I load a new image, and then, the news images come from a camera.

VBA code:

Public Sub MFile()
    Dim MatLab As Object
    Dim Result As String
    Dim a As String

      Set MatLab = CreateObject("MatLab.Desktop.Application")

      Result = MatLab.Execute("cd 'G:\Documents and Settings\admin\Mes documents\Sebastien\script plot3D'")
      Result = MatLab.Execute("plot3D")

      UserForm1.TextBox1.Text = Result

End Sub

Mfile:

function Plot3D(~)
close all
%image=ImIN;
path='G:\Documents and Settings\admin\Mes documents\Sebastien\ImagesSeb\image1.tif';
image = imread(path);
Z=rgb2gray(image);
[n,m]=size(Z);
x = linspace(1,n,size(Z,2));  %# x-coordinates for columns of Z
y = linspace(1,m,size(Z,1));  %# y-coordinates for rows of Z
[X,Y] = meshgrid(x,y);           %# Create meshes for x and y
C = image;%imread('peppers.png');        %# Load RGB image
figure
h = mesh(X,Y,Z,flipdim(C,1),...  %# Plot surface (flips rows of C, if needed)
         'FaceColor','texturemap',...
         'EdgeColor','none');
pause

Thanks.