WIN32 API Controls used with Resource

I really would like to create my dialog boxes within a resource editor and use that resource file as my reference for the dialog box within my program, and so that's what Ive been doing... However in my program I want to include a slider toolbar to change iterations for fractal generation and this is part of my resource

Code:

---

IDD_TOOLBAR DIALOGEX 300,-29,236,187
CAPTION "Toolbar"
FONT 8,"MS Sans Serif",0,0,0
STYLE WS_POPUP|WS_VISIBLE|WS_CAPTION|DS_MODALFRAME
EXSTYLE WS_EX_TOOLWINDOW
BEGIN
  CONTROL "Close Program",IDC_EXIT,"Button",WS_CHILD|WS_VISIBLE|WS_TABSTOP,142,9,84,15
  CONTROL "",IDC_TRB1,"msctls_trackbar32",WS_CHILD|WS_VISIBLE,82,60,148,20
  CONTROL "Iterations for strange attractor and IFS fractals",IDC_STC1,"Static",WS_CHILD|WS_VISIBLE,84,46,146,9
END

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And I have declared it earlier in the program as such:
#define IDC_TRB1 701 // Trackbar 1

When I compile my program the slider toolbar is already on the dialog that I have created, but it's virtually useless because I cant read from it or set its length, or anything!

My question is how do I use the resource.rc file where my toolbar is coded and initialize the toolbar elsewhere in my program, psuedocode or code references would be appreciated.

I know that people have declared that a toolbar was to be created right at the WM_CREATE part of the window initialization, but instead of useing:

Code:

---

track_bar = CreateWindowEx(NULL, TRACKBAR_CLASS,
    "Trackbar", WS_CHILD | WS_VISIBLE | TBS_AUTOTICKS | TBS_ENABLESELRANGE,
    10, 10, 200, 30, hwnd, (HMENU)ID_TRACKBAR, hinstance_main, NULL );

---

I would rather like to use my predefined toolbar from the .rc file, sorry if im being redundant.

Also I'm rather new to WIN32 API programming, I miss VGA, so please be patient with me if Ive been rather blatantly ignorant to certain aspects of API programming