レバーバンドの位置をプログラム上で移動させたい

レバーバンドの位置をプログラム上で移動させたいのですがどうすればできますか。
2つ目の入力ボックスを左端から100px右に移動したいです。
#define RBBIM_STYLE         0x00000001

#define RBBIM_COLORS        0x00000002
#define RBBIM_TEXT          0x00000004
#define RBBIM_IMAGE         0x00000008
#define RBBIM_CHILD         0x00000010
#define RBBIM_CHILDSIZE     0x00000020
#define RBBIM_SIZE          0x00000040
#define RBBIM_BACKGROUND    0x00000080
#define RBBIM_ID            0x00000100
#define RBBIM_IDEALSIZE     0x00000200
#define RBBIM_LPARAM        0x00000400
#define RBBIM_HEADERSIZE    0x00000800  // control the size of the header
#define RBBIM_CHEVRONLOCATION 0x00001000
#define RBBIM_CHEVRONSTATE    0x00002000

#define RBBS_BREAK          0x00000001  // break to new line
#define RBBS_FIXEDSIZE      0x00000002  // band can't be sized
#define RBBS_CHILDEDGE      0x00000004  // edge around top & bottom of child window
#define RBBS_HIDDEN         0x00000008  // don't show
#define RBBS_NOVERT         0x00000010  // don't show when vertical
#define RBBS_FIXEDBMP       0x00000020  // bitmap doesn't move during band resize
#define RBBS_VARIABLEHEIGHT 0x00000040  // allow autosizing of this child vertically
#define RBBS_GRIPPERALWAYS  0x00000080  // always show the gripper
#define RBBS_NOGRIPPER      0x00000100  // never show the gripper
#define RBBS_USECHEVRON     0x00000200  // display drop-down button for this band if it's sized smaller than ideal width
#define RBBS_HIDETITLE      0x00000400  // keep band title hidden
#define RBBS_TOPALIGN       0x00000800  // keep band in top row
a="あいうえお":input a:hInput1=objinfo(stat,2)
b="かきくけこ":input b:hInput2=objinfo(stat,2)
c="さしすせそ":input c:hInput3=objinfo(stat,2)
winobj "ReBarWindow32","",0,0x56000641
hReBar = objinfo(stat,2)
	dim RBBI,12
	RBBI = 80
	RBBI(1) = RBBIM_STYLE | RBBIM_SIZE | RBBIM_CHILD | RBBIM_CHILDSIZE | RBBIM_ID
	RBBI(2) = RBBS_BREAK | RBBS_GRIPPERALWAYS
	RBBI(8) = hInput1
	RBBI(10) = 22 & 0xFFFF
	RBBI(9) = 100//最小の大きさ
	RBBI(13) = 0
	sendmsg hReBar, 0x401, -1, varptr(RBBI)
	
	dim RBBI,12//2つ目の入力ボックスを左端から100px右に移動したい
	RBBI = 80
	RBBI(1) = RBBIM_STYLE | RBBIM_SIZE | RBBIM_CHILD | RBBIM_CHILDSIZE | RBBIM_ID
	RBBI(2) = RBBS_GRIPPERALWAYS
	RBBI(8) = hInput2
	RBBI(9) = 100//最小の大きさ
	RBBI(10) = 22 & 0xFFFF
	RBBI(13) = 0
	sendmsg hReBar, 0x401, -1, varptr(RBBI)
	
	dim RBBI,12
	RBBI = 80
	RBBI(1) = RBBIM_STYLE | RBBIM_SIZE | RBBIM_CHILD | RBBIM_CHILDSIZE | RBBIM_ID
	RBBI(2) = RBBS_BREAK | RBBS_GRIPPERALWAYS
	RBBI(8) = hInput3
	RBBI(9) = 100//最小の大きさ
	RBBI(10) = 22 & 0xFFFF
	RBBI(13) = 0
	sendmsg hReBar, 0x401, -1, varptr(RBBI)
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