To initialize the toolbar we use an array of strings which contains the name of each action we want to list in the toolbar.
private string[] _ActionButtons = new string[23] {
"FileOpen", "FileAppend", "FileSaveAsPDF", "SelectStd", "SelectObjects",
"ZoomToRect", "SelectText", "SelectFillForm", "DrawFieldEdit", "DrawFieldCheck",
"DrawAnnotFrame", "DrawAnnotHighlight", "DrawAnnotFreetext", "DrawAnnotSymbol", "DrawAnnotSquiggly",
"DrawAnnotHighlightText", "DrawAnnotBlackText", "DrawTextline", "DrawRect", "DrawImage",
"DrawHighlight", "DrawCircle", "About" };
We also add PNG images for the buttons to the resources. All images use the build mode "Embedded Resource":
In this case the name of the image is the same as the action in the array _ActionButtons. The images are stored in a smaller and in a larger "2x" resolution.
This are the symbols in the order of the actions in the array:
private void InitToolbar( ToolStrip toolStrip, string[] Actions )
{
toolStrip.Height = 40;
bool highdpi;
// Enable the large buttons if >120dpi!
Graphics g = Graphics.FromHwnd(new IntPtr(0));
highdpi = (g.DpiX>120);
// Create the toolbar
for (int i = 0; i < Actions.Length; i++)
{
string pngname =
"PDFViewNET.Resources." + Actions[i] + ((highdpi) ? "@2x.png" : ".png");
System.Reflection.Assembly thisExe;
// use this to check resource names in debugger!
// string[] db = GetType().Assembly.GetManifestResourceNames();
thisExe = System.Reflection.Assembly.GetExecutingAssembly();
System.IO.Stream imagestream = thisExe.GetManifestResourceStream(pngname);
// If you get an exception here
// a) check name of resource
// b) check if resource Buildmoude was set to "Embedded"
Image img = Image.FromStream(imagestream);
// Create a new button
ToolStripButton ActionBtn = new ToolStripButton("", img, null, "");
ActionBtn.ImageScaling = ToolStripItemImageScaling.None;
// and get the correct id
ActionBtn.Tag = pdfViewer1.CommandStr(
commands.COMPDF_ACTION_READ, "?" + Actions[i] );
ActionBtn.Click += new System.EventHandler(doExecuteWPViewAction);
toolStrip.Items.Add(ActionBtn);
}
}
This method is called at the end of the initialization
public Form1()
{
...
// Load the menu from the embedded actions
pdfViewer1.InitMainMenu(menuStrip1, ...
// Initialize the toolbar
InitToolbar(toolStrip1, _ActionButtons );
}
All buttons call the event handler doExecuteWPViewAction which is also used by the menu items.